220221002220 has 48 divisors (see below), whose sum is σ = 620025570528. Its totient is φ = 58401146880.

The previous prime is 220221002219. The next prime is 220221002231. The reversal of 220221002220 is 22200122022.

220221002220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220221002220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10128229 + ... + 10149948.

It is an arithmetic number, because the mean of its divisors is an integer number (12917199386).

Almost surely, 2^220221002220 is an apocalyptic number.

220221002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221002220 is an abundant number, since it is smaller than the sum of its proper divisors (399804568308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220221002220 is a wasteful number, since it uses less digits than its factorization.

220221002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20278370 (or 20278368 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 220221002220 its reverse (22200122022), we get a palindrome (242421124242).

The spelling of 220221002220 in words is "two hundred twenty billion, two hundred twenty-one million, two thousand, two hundred twenty".